[gtk+] Try harder to fix dialog titles

[Matthias Clasen <matthiasc src gnome org>]

commit dc87027af9c048d76b11a4a3b55162a2ea7ef7af
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jul 15 21:29:59 2014 -0400

    Try harder to fix dialog titles
    
    https://bugzilla.gnome.org/show_bug.cgi?id=733099

 gtk/gtkdialog.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkdialog.c b/gtk/gtkdialog.c
index 3091f9f..ac7849a 100644
--- a/gtk/gtkdialog.c
+++ b/gtk/gtkdialog.c
@@ -458,9 +458,12 @@ gtk_dialog_constructed (GObject *object)
   if (priv->use_header_bar)
     {
       GList *children, *l;
+      gchar *title;
 
+      title = g_strdup (gtk_window_get_title (GTK_WINDOW (dialog)));
       gtk_window_set_titlebar (GTK_WINDOW (dialog), priv->headerbar);
-      gtk_window_set_title (GTK_WINDOW (dialog), gtk_window_get_title (GTK_WINDOW (dialog)));
+      gtk_window_set_title (GTK_WINDOW (dialog), title);
+      g_free (title);
 
       children = gtk_container_get_children (GTK_CONTAINER (priv->action_area));
       for (l = children; l != NULL; l = l->next)